Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea9be4a1f6b36928…

MALICIOUS

PDF

41.0 KB Created: 2020-08-24 20:22:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45f0dc791771cc72fcbd7efb2171100e SHA-1: 5f71a71266e7707239926dd093e36559e1036ae7 SHA-256: ea9be4a1f6b369287f895791e48a87a61dd8ca3f115d94a44e889dd60906c9df
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm designed to manipulate search engine results, with one of the primary links directing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to the redirector, suggesting a lure to a malicious site. The presence of multiple embedded links to various PDF files, including those hosted on Shopify, indicates a broad attempt to appear legitimate while masking the malicious redirector.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=char+broil+classic+6+burner+manual
    • http://kiladot.thecaitescape.blog/uploads/1/3/1/3/131380316/bujapiruzanuburiver.pdf
    • http://mevum.alhs18011.org/uploads/1/3/0/9/130969360/1022793.pdf
    • http://wivuwuv.gearstoyou.com/uploads/1/3/2/7/132740505/6756349.pdf
    • https://cdn.shopify.com/s/files/1/0438/6547/3189/files/international_accounting_standards_summary.pdf
    • https://cdn.shopify.com/s/files/1/0432/5389/1232/files/john_deere_1200a.pdf
    • https://cdn.shopify.com/s/files/1/0428/2603/9452/files/rusawipu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9199/2481/files/20057890193.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/domiwa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/3361109096.pdf
    • https://cdn.shopify.com/s/files/1/0429/5101/6614/files/66971487541.pdf
    • https://cdn.shopify.com/s/files/1/0432/2148/3687/files/javascript_blob_file_format.pdf
    • https://cdn.shopify.com/s/files/1/0431/7180/7381/files/minecraft_zombie_survival_server.pdf
    • https://cdn.shopify.com/s/files/1/0457/0808/3356/files/update_android_samsung_s7_edge.pdf
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/75491028395.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/46058462426.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004764.bin
8156ab46cce4d97f7765cfaca39bf55f4a399ab9aeea69add6cc3406c1ad3287
pdf-font-stream PDF embedded font (sfnt) at offset 0x4764 5156 bytes
font_01_sfnt_off000058b6.bin
ee86f193633bf959952aeac0c76f87df99d7caf0c77493eb52181e2f2e39a7ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x58B6 14724 bytes
font_02_sfnt_off00008762.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8762 4324 bytes